With all of the good JRPG's coming out soon, I'm curious. Out of all of the RPG's out there, who do you think is the most ridiculously powerful team of characters from any game? Excluding Pokemon, sadly.

1. Four members per party
2. Party members can be from any RPG, regardless of console
3. One character per game entry (example: Auron from FFX, but no other FFX characters; party can have other FF characters)
4. Protagonists ONLY. No bosses or antagonists.

I haven't played all that many RPGs, but based on the ones I have played, how about: Seth from Fire Emblem 8, Sharla from Xenoblade Chronicles, Vivian from Paper Mario: TTYD, and Quina from Final Fantasy IX. Maybe not the most overpowered party in existence, but certainly a crossover I'd like to witness.

#1 Ramza from Final Fantasy Tactics. Anyone who has played the game will know that he can become ridiculously overpowered. So he's in. Actually, pretty much anyone in that game can become ridiculously OP - FFT is so wonderfully broken!
#2 Rex from Xenoblade Chronicles 2. There's undoubtedly some recency bias here, but he gets all the blades, can spam specials and use all elements. It's totally unfair on all the other characters - except maybe, just maybe, Tora with Poppi.
#3 Neku with Shiki from The World Ends With You. OK, maybe not the most powerful character ever, but it's from possibly my all-time favourite game.
#4 Need a magic user and a healer, so, er, I guess Red Wizard from Final Fantasy (the original). I was going to say Vivi from FFIX too, because I love the character, but SlimFreakinFast got there first.

I'm sure this had more to do with an equipment ensemble that I have never been able to duplicate again, but I had a playthrough of Mario RPG once where no matter how powerful the attack, even from Smithy, Geno would only take 1 damage. So I would have Geno and literally any other 3 people (I'll go with Robo from Chrono Trigger because I like him, Lloyd from Tales of Symphonia, and Endir from I am Setsuna because that is what I am playing now and he has Life to resurrect Geno who could still die from instant kill attacks).

Gau from FFVI with the Niteshade rage ability can permanently charm any enemy in the game (including the final boss), so they'll completely stop attacking your party in favor of attacking themselves until they die.

Liquid Metal Slimes in Dragon Quest V can very rarely be recruited (1/256 chance every time you defeat one, they don't appear often, and they usually run before they can be killed), and they're invincible to most attacks.

Paladins in Ogre Battle 64 aren't gamebreaking, but it's pretty easy to promote to them late game and they're so efficient all around that there's little reason to have a unit that doesn't have at least one in it.

Assassins from Final Fantasy Tactics Advance have great stat growth and can learn the concentrate ability, which gives about 95% accuracy to all their attacks, including instant death moves.